Recidivist swindler of soldiers and pensioners, Henri Landru became famous for a series of murders committed during the first World War. His scheme was to find a rich, lonely war widow through a singles ad, seduce her into signing over her fortune, then kill her and dispose of the body in his extra-large kitchen stove. Landru entrapped ten widows using this technique before an investigation of his earlier frauds linked him to the murders. Executed by guillotine.